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  SubFile resolving
Posted by: Jan Jirout - 2013-08-26, 22:49 - Forum: LDraw File Processing and Conversion - Replies (6)

Hello,

I'm trying to write simple program that parse .dat files and build tree representation of LDraw model in memory. I have problem to read some sub file references. For example line:

Code:
1 16 290 0 230 1 0 0 0 1 0 0 0 1 stud.dat
This line is reference to file "stud.dat". Problem is that this file doesn't exists. I can't find advise how to resolve "stud.dat" to existing file name in LDraw part library. Is there any way how to resolve it?

Thanks

Jan

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  OpengGL color / material properties
Posted by: Roland Melkert - 2013-08-25, 19:45 - Forum: Parts Authoring - Replies (23)

Hi all,

I'm playing around with making the difference between plastic and e.g. rubber parts visible in LDCad.

I've found some nice OpenGL material references but was wondering if there is some kind of 'standard' floating around. Especially for determining the diffuse, ambient and specular components based upon the single rgb supplied in LDConfig.ldr

Up to now I'm using the rgb for both diffuse and ambient, and have a static specular of 1,1,1 and shininess of 128 (which is more appropriate for chrome I'm realizing now).

I'm doing this with the standard lighting model (not shaders) for now (LDCad runs on OpenGL as low as 1.1), so I only can play with the base four components for now.

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  Quick question regarding stud4fns's
Posted by: Jude Parrill - 2013-08-24, 23:16 - Forum: Parts Authoring - Replies (1)

Is there a reason why we don't include the inner-bottom (where it connects with the adjoining part) edgeline on stud4fns's? At least the part I've been using recently (stud4f4s) doesn't include this line, meaning I have to add it individually for each stud, which is a pain and clutters up larger parts which use lots of them. Was this an oversight? If I were to update and resubmit this primitive, would anybody have a problem with it?

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  Iron Man and Captain America
Posted by: Reuben Pearse - 2013-08-23, 19:07 - Forum: Parts Authoring - Replies (6)

Hi all,

I've seen that MagFors has been busy working on some Iron Man parts :-)

I noticed that on the image for set 76007 (Iron Man : Malibu Mansion Attack) that the visor appears to have a hinge. Is that correct? How does the hinge mechanism work?
See images here:
http://www.flickr.com/photos/thebricktime/8459856541/
http://www.flickr.com/photos/porschecm2/8519272619/

BTW I recently rendered an Iron Man using POV-Ray...
http://www.pearse.co.uk/lego/images/ironman_3d_1024.png
A copy of the LDraw file for this figure is available here:
http://www.pearse.co.uk/lego/models/ironman/


I found Captain America's shield here:
http://www.ldraw.org/cgi-bin/ptdetail.cg...902p02.dat
Is anyone working on any other Captain America parts?

One final question - what is the correct hair part for Tony Stark?

Bye for now

Reuben
=====================================
Download 3D Lego models and other resources from:
http://www.pearse.co.uk/lego
=====================================

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  LDD Brickset vs. LDraw Library and Parts Tracker
Posted by: Rolf Osterthun - 2013-08-22, 15:16 - Forum: Parts Authoring - Replies (26)

Hey,

there are a lot of LEGO bricks that are available in the LDD, but not in LDraw. I created a list that compares the design-ids known in the LDD Brickset 1128 with the part-numbers that are currently available in the official LDraw Parts Library (up to update 2013-01) and with the part-numbers that are currently on the Parts Tracker (Server time: 2013-08-22 10:11).

The LDD uses pure numeric design-ids but LDraw sometimes has numbers with an alphanumeric appendix. To compare these two (three) lists I used the following regular expression:

Code:
^<LDDDesignId>([a-zA-Z]+[0-1a-zA-Z]*)*$
E.g.: when I am looking for the LDD design-id 2041 this expression will match 2041, 2041a, 2041b and 2041ps3 but not 20411. If I find a match, I assume that the part exists in LDraw, too. My results can be seen on this web-page: http://www.digital-bricks.de/en/index.php?site=nil.

Since it is possible to convert LDD data to LDraw compatible data, I will gradually provide all parts that have a design-id in the LDD and no matching part-number in the LDraw Universe. Anyway, some of the provided parts might already exist in the LDraw - but I claim that they have a different part-number (we need an alias).

Please remember: These are unofficial parts. They may be incomplete, or inaccurate, and it is possible that when they are officially released one day, they may be changed in ways that could mess up any model you use them in. All these parts are redistributable under CCAL version 2.0. Anybody is welcome to use these files to prepare the parts for the LDraw Parts Tracker.

I am grateful to any kind of comments, suggestions or hints.

Rolf

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  Background images on MLCad
Posted by: Nicola - 2013-08-22, 14:21 - Forum: LDraw Editors and Viewers - Replies (2)

Hi, is it possible to put a background image on MLCad views ? It would be useful for tracing an object while keeping proportions and such, as in many 3d editors (see for example blender).

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  quad2dat program
Posted by: Remco Canten - 2013-08-21, 19:27 - Forum: LDraw File Processing and Conversion - Replies (20)

I am still discovering the programs that are present for all users.
Recently i read a lot of the program quad2dat.
But i am unable to find/download this.
Does anyone else know a solution to have a picture of a part and convert this to MLcad usable file?

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  Is there any way to associate parts with a given model?
Posted by: Ahmed Elhassan - 2013-08-20, 23:54 - Forum: General LDraw.org Discussion - Replies (5)

Is there a way to have a specific set of parts associated with only a specific model? I keep each LDraw model in it's own folder and would like each model to have it's own unique parts folder. A parts folder that only holds any extra parts that I am using with the model itself. Is there a way to do this?

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  Any DAT file editors that let you view 1 line at a time?
Posted by: Mark Kennedy - 2013-08-20, 7:31 - Forum: Parts Authoring - Replies (3)

Are there any DAT file editors that let you view 1 line at a time similar to what the original LDraw's Ledit does? The problem with Ledit is it can't handle type 5 lines if you save the file it will turn them into type 5 lines.

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  LDCad 1.2 Beta 1 (win+linux)
Posted by: Roland Melkert - 2013-08-20, 1:44 - Forum: LDraw Editors and Viewers - Replies (7)

Hello all,

Proudly I would like to present the newest and hopefully greatest version of my LDCad application.

Major new features (compared to 1.1b)

  • Flexible parts
  • Template system
  • Nested editing
  • (recursive) Grouping

And some minor new features:
  • Smoothing of parts
  • Up to 30% increase of rendering performance.
  • And of course many small improvements and bugfixes.

I also placed some screen recordings on Youtube which should help people get familier with the program more quickly.

Basic editing
This demonstrates the getting started editing basics.

More advanced editing
This introduces using non absolute grids and ortho view mode.

Pneumatic hose placement demo
This demonstrates placement of a pneumatic hose, it also indirectly (minimally) demonstrates the new nested editing mode.


If someone would like to see a clip of some particular activity feel free to ask.

You'll find all available versions at the usual place:
LDCad home page

Any questions and suggestions are welcome.

As usual a nice screen shot of this versions mascot model:
[Image: LDCadScrShot4b.png]

Also as an attachment to this post is the MPD for the above model (8837), which demonstrates you can see the generated pneumatic hoses in any decent LDraw renderer without needing additional parts etc.

This is possible because the flexible parts are (optionally) generated by deforming a donor (segment) LDraw file which is then inlined in the model using special submodels.

I've created some custom donor files for this purpose (pneumatic hose, pf electric wires and technic axle). These files are basicly dressed down versions of official files in order to keep the resulting type 1..5 lines count to a minimum while maintining high quality closed mesh parts.

I know there are many more similar parts people would like to place and 'bend', I will be working to add them in future versions. But this will take me quite some time. So if anyone is interested in helping making additional flexible part (template/donors), let me know and I'll setup some sort of reference document and/or tutorial clip. All this can be done using the 1.2 version it self no scripting/coding is needed it's all based on plain ldr files.



Attached Files
.mpd   8837.mpd (Size: 2.07 MB / Downloads: 1)
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